package com.aurora.gulimall.cart.controller;

import com.aurora.common.constant.AuthServerConstant;
import com.aurora.gulimall.cart.interceptor.CartInterceptor;
import com.aurora.gulimall.cart.service.CartService;
import com.aurora.gulimall.cart.vo.Cart;
import com.aurora.gulimall.cart.vo.CartItem;
import com.aurora.gulimall.cart.vo.UserInfoTo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;

@Controller
public class CartController {

    @Autowired
    private CartService cartService;
    /**
     * 浏览器有一个cookie；user-key；标识用户身份，一个月后过期
     * 如果第一次使用jd的购物车功能，都会给一个临时的用户身份
     * 浏览器以后保存，每次访问都会带上这个cookie
     *
     * 登录：session有
     * 没登录：按照cookie里面带来的user-key来做
     * 第一次：如果没有临时用户，帮忙创建一个临时用户
     * @return
     */
    @GetMapping("/cart.html")
    public String cartListPage(Model model){
        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);
        return "cartList";
    }

    /**添加商品到购物车
     * @return
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num,
                            RedirectAttributes ra){
//        System.out.println(skuId+"-"+num);
        CartItem cartItem = cartService.addToCart(skuId,num);
        System.out.println("加入购物车的数据:"+cartItem);
        //重定向model数据会丢失
//        model.addAttribute("skuId",skuId);
        //重定向到成功页面。再次查询购物车数据即可
        ra.addAttribute("skuId",skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,Model model){
        CartItem cartItem = cartService.getCartItem(skuId);
        model.addAttribute("item",cartItem);
        return "success";
    }

    /**购物车勾选项
     * @param skuId
     * @param check
     * @return
     */
    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId,@RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);
        return "redirect:http://cart.gulimall.com/cart.html";
    }


    /**购物车商品数量更改
     * @param skuId
     * @param num
     * @return
     */
    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId,@RequestParam("num") Integer num){
        cartService.changeItemCount(skuId,num);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/currentUserCartItem")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems(){
        List<CartItem> currentUserCartItems = cartService.getCurrentUserCartItems();
        return currentUserCartItems;
    }



}
